Single-player games like Heart-Lung Machine
Below are 8 single-player Steam games similar to Heart-Lung Machine, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Heart-Lung Machine page.
Ranked picks
- 1

Tranquil Cove
Single-player alternative to Heart-Lung Machine — playable solo, no multiplayer required. Shares Action and Indie with Heart-Lung Machine.
Your mother recently passed away, and her mysterious childhood home in a small town called Tranquil Cove was passed down to you. In an attempt to learn about your mothers mysterious past, you go to investigate. Nothing could prepare you for what you find there...
- 2

CONFINED: Leaving OKB-134
Single-player alternative to Heart-Lung Machine — playable solo, no multiplayer required. Shares Action and Indie with Heart-Lung Machine.
CONFINED: Leaving OKB-134 is a Horror/Puzzle Adventure for PC and VR set in an abandoned soviet bunker. Reactivate power, lights and complex machinery. Learn about long-gone personnel, solve riddles and find a way to escape. But stay quiet! You’re not alone.
- 3

Those Who Crawl VR
Single-player alternative to Heart-Lung Machine — playable solo, no multiplayer required. Shares Action and Indie with Heart-Lung Machine.
Crawl through tight cave tunnels and avoid monsters in this claustrophobic VR spelunking game. Escape inhuman monsters and deadly environments as the cave walls turn to flesh.
- 4

Unmourned VR
Single-player alternative to Heart-Lung Machine — playable solo, no multiplayer required. Shares Action and Indie with Heart-Lung Machine.
Unmourned is a first-person psychological horror game where Jason moves into a new house only to be haunted by escalating paranormal events. Driven by fear, he must uncover the truth behind the previous owners' disappearance. Can he solve the mystery before it's too late?
- 5

Propagation: Paradise Hotel
Single-player alternative to Heart-Lung Machine — playable solo, no multiplayer required. Shares Action and Adventure with Heart-Lung Machine.
Trapped inside the Paradise Hotel, you are desperate to find your sister. Explore dark surroundings, gather resources, and survive terrifying encounters. This intense single-player VR survival horror game with great storytelling will get your adrenaline pumping.
- 6

Unknightly
Single-player alternative to Heart-Lung Machine — playable solo, no multiplayer required. Shares Action and Indie with Heart-Lung Machine.
Unknightly is a medieval VR stealth game designed from the ground up for virtual reality. You assume the role of a retired master-thief as he is drawn back into a life once thought left behind.
- 7

The Pale Mimic
Single-player alternative to Heart-Lung Machine — playable solo, no multiplayer required. Shares Action and Adventure with Heart-Lung Machine.
The Pale Mimic is an atmospheric horror set in the untamed Alaskan wilderness. As a high profile fugitive on the run, it’s just you and your dog surviving in the chilling forests, until something else shows up uninvited.
- 8

Cosmodread
Single-player alternative to Heart-Lung Machine — playable solo, no multiplayer required. Shares Action and Indie with Heart-Lung Machine.
Cosmodread is a VR survival horror roguelike about escaping a dying spaceship filled with nightmares. Stranded in a hostile universe, you must explore, survive, and find your way back to the safety of Earth.